<template>
	<view>
		<view class="goods-list">
		  <view v-for="(goods, i) in goodsList" :key="i" @click="gotoDetail(goods)">
        <my-goods :goods="goods"></my-goods>
      </view>
		</view>
	</view>
</template>

<script>
	export default {
		data() {
			return {
				// 请求参数对象
        queryObj: {
          query: '',
          cid: '',
          pagenum: 1,
          pagesize: 10
        },
        // 商品列表数据
        goodsList: [],
        // 总条数
        total: 0,
        // 节流阀
        isloading: false
        
			};
		},
    onLoad(options) {
      // options 存储了页面跳转时传进来的参数
      this.queryObj.query = options.query || ''
      this.queryObj.cid = options.cid || ''
      // 获取商品列表数据
      this.getGoodsList()
    },
    methods: {
      // 获取商品列表数据
      async getGoodsList(cb) {
        // 开启节流阀
        this.isloading = true
        const { data: res } = await uni.$http.get('/api/public/v1/goods/search', this.queryObj)
        cb && cb()
        //  关闭节流阀
        this.isloading = false
        if( res.meta.status !== 200 ) return uni.$showMsg()
        this.goodsList= [...this.goodsList, ...res.message.goods]
        this.total = res.message.total  
      },
      // 跳转到详情页
      gotoDetail(goods) {
        uni.navigateTo({
          url: '/subpkg/goods_detail/goods_detail?goods_id=' + goods.goods_id
        })
      }
    },
    onReachBottom() {
      // 判断是否还有下一页数据
      if(this.queryObj.pagenum * this.queryObj.pagesize >= this.total) return uni.$showMsg("数据加载完毕！！！")
      // 判断是否正在请求其他数据，如果是，则不发起另一个请求
      if(this.isloading) return
      // 让页码自增+1
      this.queryObj.pagenum += 1
      this.getGoodsList()
    },
    onPullDownRefresh() {
      // 重置关键数据
      this.queryObj.pagenum = 1
      this.total = 0
      this.isloading = false
      this.goodsList = []
      // 重新请求数据
      this.getGoodsList(() => uni.stopPullDownRefresh())
    }
	}
</script>

<style lang="scss">

  

</style>
